Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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Studies on the Surface Properties of PMMA after Accelerated Weathering

  • Kwon, Young Bum (School of Materials Science and Engineering, Polymer Science and Engineering, RIGET, Gyeongsang National University) ;
  • Ha, Jin Uk (Lightweight & Convergent Materials R&D Center, Korea Automotive Technology Institute) ;
  • Hwang, Ye Jin (Lightweight & Convergent Materials R&D Center, Korea Automotive Technology Institute) ;
  • Oh, Jeong Seok (School of Materials Science and Engineering, Polymer Science and Engineering, RIGET, Gyeongsang National University)
  • Received : 2016.12.14
  • Accepted : 2016.12.22
  • Published : 2016.12.31
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Abstract

The surface properties of poly(methyl methacrylate) (PMMA) were investigated after accelerated weathering. Glossinesses, contact angles, surface free energies, thermal stability, and mechanical properties were investigated. The glossiness of the weathered PMMA was decreased with increasing exposure time. Contact angles and surface free energies were not overtly changed because the amount of oxygen on the surface was remained. PMMA was compounded with anti-block and antistatic agents using a co-rotating twin screw extruder to improve the durability. The PMMA composites showed better glossinesses after accelerated weathering while maintaining the contact angles, surface energy, thermal stability, and mechanical properties without significant changes.

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